mc68336 Freescale Semiconductor, Inc, mc68336 Datasheet - Page 29

• Manufacturer Part Number: mc68336
• Description: An Introduction To The Mc68331 And Mc68332
• Manufacturer: Freescale Semiconductor, Inc

To load a program, perform the following sequence:
Press the page up key on the PC keyboard. A small window will open and ask for the character protocol.
Select ASCII. Then, when prompted to, type in the name of the S-record file.
The file transfer is done when the beeper sounds and the underline cursor flashes. Press <CR> twice to
return to the CPU32Bug prompt. See the CPU32Bug Debug Monitor User’s Manual (M68CPU32BUG/D) or
the M68331BCC User’s Manual (M68331BCC/AD1) or the M68332BCC User’s Manual (M68332BCC/AD1)
for more information about debugging commands.
3.2.1.2 Using the EVK in Background Debug Mode
Both the PFB and BCC have a BDM connector. On older versions of the EVK, both the PFB and BCC BDM
connectors have eight pins instead of ten pins. On newer versions of the EVK, the BCC has a 10-pin con-
nector, while the PFB still has an 8-pin connector. The 8-pin connector is shown inFigure 19, and the 10-
pin connector is shown in Figure 17.
The change from the 8-pin connector to the 10-pin BDM connector was made primarily to accommodate the
BERR signal. This signal is required to terminate bus cycles that would otherwise prevent the MCU from
entering BDM (a bus cycle is unterminated if no bus termination signal, e.g. DSACK[1:0] or BERR is assert-
ed externally or internally). The functions of the connector pins are described in Table 4.
When using a board with the 8-pin connector, connect pins three to ten of the ICD32 cable to pins one to
eight of the 8-pin connector. Apply power to the board, and invoke the ICD32 software. Since CSBOOT se-
lects the EPROM on the BCC that contains the monitor program, the first address in the code window should
be either 60090 or e0090, depending upon whether the EPROM contains M68332Bug or M68CPU32Bug
(CPU32Bug is the newer version). Simply type “go” at the command prompt and then press any key to re-
gain the prompt. At this point, basic system initialization (chip-select circuits, software watchdog, and sys-
tem clock) is complete, and user code can be loaded into RAM. Alternatively, the system can be booted
from memory in the U2 and U4 sockets on the PFB by changing the jumper settings on both the PFB and
BCC. See the EVK manual for instructions.
MC68331/332
M68331/332TUT/D
CPU32Bug>LO
Figure 18 Terminal/PC Cable Diagram for PFB P9
Freescale Semiconductor, Inc.
IBM-PC SERIAL PORT
10
11
12
13
For More Information On This Product,
1
2
3
4
5
6
7
8
9
(DB-25)
Go to: www.freescale.com
14
15
16
17
18
19
20
21
22
23
24
25
GND
RXD
TXD
EVALUATION BOARD
1
2
3
4
5
(DB-9)
(Press <CR>)
6
7
8
9
332TUT SERIAL CONN
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